Words, grammatical forms and meanings linked to the ontology.
XO en · ADJ
Meanings
(abbreviation, alt-of, initialism, not-comparable) Initialism of extra old; a grade of premium cognac that has been aged in barrels for more than 6.5 years.
Look, people like you. You get things done, and you're gonna make a good XO. 2015 November 23, Mark Fergus, Hawk Ostby, “Dulcinea”, in The Expanse, season 1, episode 1, spoken by Captain McDowell: